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The 7th and 12th terms of an AP are 46 and 71 respectively. Find the nth term of the AP

Posted by Khushi Gangwani 5 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Bhargav Navin 5 years, 3 months ago

Sorry I think I did a mistake there should be a+(7-1)d=46=a+6d=46..1eq., a+(12-1)d=71=a+11d=71.....2eq. Now if u will substract these two equation u will get the answer..

1Thank You

Bhargav Navin 5 years, 3 months ago

a+6(n-1)=46,a+11(n-1)=71 Now substract these two equation,I hope you will get the answer...

0Thank You

Lucky Mehta 5 years, 3 months ago

6+(n-1)5 not sure about the answer.

0Thank You

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CBSE > Class 10 > Mathematics